01 n. The name of the Greek letter Λ, λ, corresponding with the English letter L, l.
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1.
The name of the Greek letter Λ, λ, corresponding with the English letter L, l.
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2.
The point of junction of the sagittal and lambdoid sutures of the skull.(Anat.)
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3.
A subatomic particle carrying no charge, having a mass equal to 2183 times that of an electron; it decays rapidly, typically forming a nucleon and a pion.(Phys.)
Phrases & compounds
Lambda moth —
a moth so called from a mark on its wings, resembling the Greek letter lambda (Λ).